Seiko Cal. 3812 - 629

The Seiko 3812-629 represents an important milestone in Seiko's 1967 lineup. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-c71c77ed1fce]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1967

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